
Thiourea is an organosulfur compound with the formula SC(NH2)2 . It is structurally similar to urea, except that the oxygen atom is replaced by a sulfur atom, but the properties of urea and thiourea differ significantly. Thiourea is a reagent in organic synthesis. `Thioureas` refers to a broad class of compounds with the general structure (R1R2N.....
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http://en.wikipedia.org/wiki/Thiourea

an organic compound that resembles urea (q.v.) but contains sulfur instead of oxygen; i.e., the molecular formula is CS(NH2)2, while that of urea is ... [1 related articles]
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http://www.britannica.com/eb/a-z/t/39

<chemical> A photographic fixative used also in the manufacture of resins. According to the fourth annual report on carcinogens (ntp 85-002, 1985), this substance may reasonably be anticipated to be a carcinogen (merck index, 9th ed). Many of its derivatives are antithryoid agents and/or free radical scavengers. ... Pharmacological action: an...
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http://www.encyclo.co.uk/local/20973

Type: Term Pronunciation: thī′ō-yū-rē′ă Definitions: 1. An antithyroid compound of the thioamide group, with the same actions and uses as thiouracil. Several derivatives of thiourea are useful in the treatment of leprosy. Synonyms: thiocarbamide
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http://www.medilexicon.com/medicaldictionary.php?t=91651
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